Steven Greenhouse writing in The New York Times:
Denise M. Keyser, a labor lawyer who advises many companies, said employers should adopt social media policies that are specific rather than impose across-the-board prohibitions.
Do not just tell workers not to post confidential information, Ms. Keyser said. Instead, tell them not to disclose, for example, trade secrets, product introduction dates or private health details.
But placing clear limits on social media posts without crossing the legal line remains difficult, said Steven M. Swirsky, another labor lawyer. “Even when you review the N.L.R.B. rules and think you’re following the mandates,” he said, “there’s still a good deal of uncertainty.”